When i perpare myself before starting in this routine i found some question to ask about it
1- why do rominian deadlift not the traditional deadlit or another varison of deadlift?
2- what the percentage of intensity should train with it because i will make 1RM tests?
3- can i change the exercises after time but with the same order?
4- how can i decide that this routine not make progress to me and must shift to split routne ,after 3 month abslotly
To further answer the previous question, you will be training like that when you are advanced, and have been training for several years. Those are advanced bodybuilding splits.
1- Romanian targets the hamstrings better which is the main point, and it does not fatigue the lower back as much.
2- Start out kind of light and add weight until you get to the right intensity. You should be at the point where it would be very difficult to do 1 more rep with good form. You should be able to do at least 8, but no more than 12. When you are able to do 11 or 12 reps, increase weight.
3- Yes, for example you may start out doing squats, and then later change to leg press. You just want to be doing a lot of basic compound lifts. That works the best.
4- If you go a couple weeks and can't add any weight or reps, then it's time to move on. That's only true for beginners though. You should do "Starting Strength" before moving to upper/lower though. The reason is because you will still be very much a beginner. It will also make you much stronger, and this strength will be important later. You will still continue maximum muscle growth, because you are still a beginner.
The purpose of this is so that once you have a year of training in, you will already have a good amount of muscle mass, you'll know how to do all the best exercises, and you will be easily lifting more than double what you can lift now. You will have developed the neural connections that let you recruit more muscle fiber and lift with more intensity. All that is what you need to get the most out of an upper/lower split.
Think of it like driving a car (manual transmission), if you leave it in a gear too long, your engine RPMs start getting too high, it's just not efficient and you can only go get to a certain speed. If you shift too soon, your engine will struggle to gain speed and it may stall out. So in other words, you are going up a very steep hill, when you pick up some speed, shift to 2nd gear. Don't shift from 1st gear straight to 3rd, or you will stall out and it will take much longer to get up that hill. Several years later you can be speeding down the highway in 5th gear, while everyone else is stalled at the bottom of the hill because they wanted to start in 5th.